Monitoring stimulant-medication effects in adults with attention deficit disorder with hyperactivity with AQT processing speed: A commentary

Elisabeth Wiig, Niels Peter Nielsen


This commentary introduces research on monitoring the effects of stimulant medication in 40 adults with ADHD. A Quick Test of Cognitive Speed (AQT) measured the effects of standard low- and high-dose immediate-release methylphenidate within a short time period. Results identified 33 responders and 7 non-responders. For responders, single-dimension (color and form) and dual-dimension (color-form) naming speed increased significantly with high-dose medication and performance profiles were normalized compared to neuro-typical adults.  Findings validated prior research and suggested that the procedure and AQT measures might identify the dose point at which normalization occurs after a medication dose has been increased.

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